Apparatus and method for making fibrous boxes



Nov. 6, 1928. 1,690,528

o. P. BUSHNELL APPARATUS AND METHOD FOR MAKING FIBROUS BOXES Filed Aug. 4, 1924 Patented Nov. 6, 1928.;

UNITED STATES 1,690,528, PATENT oFFICat OSCAR P. BUSHNELLQOF IBELLEVILLE, NEW JERS Y, ASSIGNOB, BY m'nsnzs Assmm MENTS, TO THE ABVEY MANUFACTURING 00., or OLEAN, NEW YORK, A CORPORA- TION OF DELAWARE.

APPARATUS AND METHOD FOR- MAKING FIBBOUS BOXES.

v Application filed August 4, 1924. Serial No. 730,123.

This "invention relates tofibrous boxes and more particularly to boxes of this kind which are adapted for useas battery containers, and among the objects of my invention are to pro- 6 duce an improved battery box;to produce a battery box having desirable characteristics not heretofore attained; to provide an improved method of producing battery boxes; to provide a method of making battery boxes which is easily carriedout; to provide such a method which will produce very desirable battery boxes; to provide a new and improved apparatus formaking battery boxes; to provide-apparatus by means of which an improved battery box may be produced; to provide an improved fibrous container; to provide a new method of making containers; and such other objects, advantages and capabilities as will later more fully appear.

a My invention further resides in the combination, construction and arrangement 0 parts illustrated in the accompanying. drawing, and, while I have shown therein a pre- 3 ferred construction and method of production of the same, I desire the same to be understood as illustrative only and ndt as limiting my invention.

In the drawing annexed hereto and form 0 ing a part hereof, Fi lis a'vertical, longitudinal section, partly roken away and partly in elevation, showing'onefiform of my ap aratus for producing the subject matter of t is invention; Fig. 2 is a side'elevation showing one, stage in the manufacture-of a battery box; Fig. 3 is of the stage shown in Fig. 2; Fig. 4 is a similar. view showing a subsequent stagein the I manufacture of a batter with this invention; an Fig. 5 is an eleva- 'tion of a battery box showing the bottom corrugations formed during the course of manu v faeture of the box and designed to sup ort the plates, mostly out of contact with the ottom ofthe box. I Referring more in detail to--'the annexed drawing, numeral 1 designates a tank for containing asuspension of fibrous pulp in a liquid, preferably water. A series of formso 'ers '2,- suspended by'any convenient means 3 sired thickness is deposited upo rior as shown in Fig. 4, which blIldS the three from a screw threaded shaft 4, are adapted to be placed within the tank 1 and entirely immersed within the suspension in the formers are preferabl a plan view,par tl-y 'insection,

- and 6, is to cause box in accordance,

formed solid tops to which are connected pipes 5 by -means of which liquid can be withdrawn from the interior of the formers, these pipes being connected by means of a pipe 6 to any suitable suction device. It will be noted that the middle suspending member 3 is prevented by means of collars 7 frommoving longitudinally along the shaft 4 and that such shaft is provided at its opposite ends with oppositely -directed threads, so that by rotating the shaft in one direction or the other the formers 2 may be caused to approach or recede from the I middle former. The purpose of this will be pointed out later. v

The formers 2 comprise, individually, a

block 8 hollowed out more or less in the interior and provided on the exterior faces with intersecting grooves which have perforations 9 leadmg therefrom into the hollow interior of the block, 'so that-liquid may pass from the grooves through the perforations 9 into the blocks to be withdrawn through the pipes 5v and 6 as indicated above. Closely engaging the bottom and lateral faces of each of the blocks 8 is a metallic container 10 having perforations 11 extending therethrough for the passage of liquids into the grooves in the block 8. Outside of the container 10 and in close contact therewith is a similarly shaped container 12, preferably made from very fine mesh wire-netting.

in agitated condition in any desired manner, as by means of air jets in the bottom of the er The suspension in the tank ,1 may be .kept I tank, but vibration of the tank has been found to be a b tter method. The effect of this in connection with the suction through pipes 5,

fibres of the suspension.

the

to lie'more or less in parallel planes which are substantially parallel to the faces of the con v tainers, rather than being crisis-crossed, indias well. asbein layer of a certain thickness,.dependent upon the desires of the operator, has been deposited upon the formers theshaft 4 is-rotated to cause the outer formers to approach the midrections at angles to the faces of the formers f parallel thereto. After a one and bring the contamers into the posi- I tions shown in Fig.2, tinned until a-layer of fibrous mater al of n the extecells together, hus forming a unitary whole.

the suction being conpregnated with a chemical resistin liquid that the container shall notbe sub ect to deterioration because of the acid or alkali contained therein, the receptacle is hot pressed into final condition, in which condition it looks considerably like bakelite; The num-.

ber, form and purpose of the ridges 13, in the bottom of the container, will be understood by one skilled in this art Without elaboration thereon.

It'is of course understood that the specific description of structure and method set-forth above may be departed from-without depart-. ing from the spirit of my invention as set forth in this specification and the appended claims.

' Having, now described my invention I 1. Apparatus for the making of battery containers, whicltcomprises a tank tor-hold ing wood pulp in suspension, a. plurality of formers on' which the pulp may be depos ited by suction, means by which suction may be'applied to the formers to cause the pulpto be deposited thereon, and means for cause ing the formers to approach toward and recede from each other in a horizontal plane. 2. Apparatus for the making of batte containers, which comprises a tank for hol ing wood pulp in suspension, 'a plurality of formers on which the pulp may be deposited by suction, said fdrme'rs being immersed in i the suspension in the tank, means by which suction may be appliedto' the formers to'cause deposition of the pulp thereon, andmeans to cause relative movement in a horizontal plane of the formers'toward and from each other. 3. The method of 'making battery boxes which comprises immersing a set of formers 'thencausing' more pulp'to be in a bath comprising pulp in suspension,with?- 'for holding pulp in suspension, a pluralityof deposited to formers on which said' pulp may be de osited externallyby internal suction, said ormers comprising a stationary former and formers movable toward and away from thestationary former, means by which suction may'be applied internallyof the formers to cause the .pulp to bedeposlted on the exterior thereof,"

and means for causing the movable formers stationary former.

5..,Apparatus for the] makingof battery containers, comprising in combination a tan for holding pulp in suspension, a plurality of externally by internal's'uction, said ormers to approach toward and recede away from the formers on whichsaid pulp may be de osited comprising a stationary former and formers" .movable toward and away from the stationary former, means by which suction may be applied internally of theformers to cause the pulp to be'depo'sited on the exterior thereof,

to approach'toward and recede away from the stationary former, said movement being characterized by zontal plane." v

In witness whereoi, I hereunto subscribe my name to 'thisosgecification;

being entirely in a hori- 7'5 7 0' and means for causin &the-movable formers GARRB SHNELL, 

